Description

Octaethylene Glycol is a high-purity, water-soluble polyether glycol belonging to the polyethylene glycol (PEG) family, identified by CAS No. 5117-19-1. This compound is valued for its excellent solvency, low volatility, and ability to act as a versatile chemical intermediate and formulation component. It is essential for manufacturers and R&D facilities in the pharmaceutical, personal care, and specialty chemical industries seeking reliable, high-quality raw materials for advanced synthesis and product development.

Application

• Pharmaceutical Intermediate: Used in the synthesis of prodrugs, conjugates, and as a linker molecule in drug delivery systems.
• Polymer & Resin Production: Serves as a monomer or chain extender in the manufacture of polyurethanes, polyesters, and other specialty polymers.
• Personal Care & Cosmetics: Functions as a humectant, solvent, and viscosity modifier in creams, lotions, and other cosmetic formulations.
• Chemical Synthesis: Acts as a building block for surfactants, plasticizers, and other functional chemicals requiring a hydrophilic polyether segment.
• Laboratory Reagent: Employed in biochemical and chemical research as a standard, phase-transfer catalyst, or reaction medium.
• Industrial Applications: Used in lubricants, metalworking fluids, and as a component in functional fluids where water solubility and thermal stability are required.

Basic Information

Product Name	Octaethylene Glycol
CAS No.	5117-19-1
Molecular Formula	C16H34O9
Molecular Weight	370.44 g/mol
Synonyms	2,2'-(Oxybis(ethane-2,1-diyl))bis(oxy)diethanol; 3,6,9,12,15,18,21-Heptaoxatetratriacontane-1,34-diol; PEG-8; Polyethylene glycol 400; HO(CH2CH2O)8H; Ethanol, 2,2'-[oxybis(2,1-ethanediyloxy)]bis-; α-Hydro-ω-hydroxypoly(oxy-1,2-ethanediyl) (n=8); Poly(oxy-1,2-ethanediyl), α-hydro-ω-hydroxy- (8 mol EO average molar ratio)
EINECS	225-856-4

Quality Control

Our Octaethylene Glycol is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure it meets stringent specifications for identity, purity, and performance. Certificates of Analysis (COA) documenting key parameters such as assay, water content, and impurity profiles are available upon request to support your quality assurance and regulatory needs.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and should be handled in a dry environment to prevent absorption of water. For long-term storage, consider using an inert atmosphere to minimize potential oxidation.

Specification

Item	Specification
Appearance	Colorless to pale yellow viscous liquid
Identification (IR)	Conforms
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 0.5%
Hydroxyl Value	Contact for details
pH (5% solution)	5.0 - 7.0
Heavy Metals (as Pb)	≤ 10 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.